A comparison of the static magnetic field induced magnetisation densities in UPt3 and UBe13
β Scribed by K.U. Neumann; P.J. Brown; H. Capellmann; K.R.A. Ziebeck; J.L. Smith; Z. Fisk; J.J.M. Franse; A. Menovsky
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 444 KB
- Volume
- 171
- Category
- Article
- ISSN
- 0921-4526
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β¦ Synopsis
The static magnetic field induced magnetisation densities of two uranium based heavy-fermion systems have been determined in spin polarised neutron scattering experiments at temperatures of T = 5 K and T = 10 K, respectively. Both compounds show a significantly different magnetisation density. The various contributions are identified. In UPt, the polarisation of conduction electrons is important, but in contrast the magnetisation density in UBe,, is observed to be of a pure uranium Sf-electron character with no indication of any conduction electron contribution due to polarization by the external magnetic field. Both heavy-fermion compounds have in common a small value of the aligned .5f-electron magnetic moment which is well described by a spherically symmetric model. However, UPt, and UBe,, differ significantly in the contributions of the conductions electrons.
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